Glass door construction



Jan. 15, 1957 Filed April 18, 1952 R. D. CASWALL GLASS DOOR CONSTRUCTION 3 Sheets-Sheet 1 Jan. 15, 1957 R. D. CASWALL 2,777,173

GLASS DOOR CONSTRUCTION Filed April 18,.1952 3 Sheets-Sheet 2 Imventor United States Patent GLASS DOOR CONSTRUCT'lON Robert D. Caswall, Rossford, .Ohio, assignor to Libbey- Owens-Ford Glass Company, Toledo, Ohio, a corporation of Qhio Application April 18, 1952, Serial No. 283,096

Claims. (Cl. -16) This invention relates broadly to doors, and particularly to a door construction comprising a glass panel with metal channel sash members at the top and bottom edges thereof.

It is an object of this invention to rovide a glass door which is both pleasing in appearance and simplified in construction.

Another object of this invention is to provide a glass panel door construction in which metal sash members are secured to the top and bottom 'edgesof the panel.

Still another object of this invention is to provide a glass panel door construction in which a filler material is used to lock metal sash members in inter-fitting relation to the top and bottom edges of the panel.

Still another object of this invention is to provide .a glass panel door construction in which a minimumnf filler material is required to lock the panel and sash members in interfitting relation.

Still another object of this invention is to provide metal sash members for the top and bottom edges .of .a [glass panel door which are constructed so as to fconc'eala filler material between said edges and saidmembers.

Still another object of the invention is to provide metal sash members for the top and bottom edges ofglasspanel doors whereby hardware therefor is concealed and Protected.

In accordance with this invention, metal sash members are provided for the top and bottom edges of a panel of tempered plate glass to provide a door construction which satisfies both aesthetic and utilitarian purposes. The metal sash members are substantially H-shaped in cross 'section, having opposed longitudinal channel portions, one of which is adapted to receive the top or bottom edgesof the panel and the other to receive hardware-for the door, such as pivotal hinge connections and locking mechanism for operative relationship with a suitable frame .fOimSfiid door.

The sash members are rigidly secured to the top and bottom edges of the glass panel in spaced interfittin'grelationship thereto by means of a filler material which is applied to the space between the adjacent surfaces of said interfitting panel and sash members. Said interfitting members are securely held in slightly spaced relation to one another by means of shims or clips and the filler mater-ialis applied in a molten condition to the channel portion of the sash members which receives onee'dge or the glass panel and retains said material withinthec-space between said members. Upon cooling and hardening in said space, the filler material in combination with the-interfitting portions of the panel ands'ash members provides a rigid lock therebetween. 7

As well, .the sash members may be held in sli'ghtly spaced relation to the panel, preparatory to the application of molten fillermaterial, by means of a specially constructed adapter member which, as well as securely holding the sash members as aforeno'ted serves. torduce the amount of filler material necessary to fill the space by sealing ofir'a major portion of the-spacefrom theioutside.

2,777,173 Patented Jan. 15, 1957 "ice The hardware which is received in the channel portion of the sash member opposed to that in which the glass panel is received is fully concealed from the outside .of the door construction and is protected to a great degree from Wear and damage. As well, the panel-receiving channel portion of the sash member is constructed in such a manner that it conceals from view substantially all of the filler material. Thus, the glass panel door constructed in accordance with this invention permits the observer to have an unobstructed view through all portions .of the panel not covered by the sash members. Further, all objectionable and unsightly attachments are removed from the exterior of the door without detracting from its structural stability and efliciency.

In the drawings, wherein like numerals are employed 'to designate like parts throughout thesame:

fig. 1 is a perspective view of a glass door constructed inaccordance with this invention;

Fig. 2 is a fragmentary perspective view of the glass panel removed from the sash members of the door;

Fig. 3 is .a transverse sectional view of the door taken substantially along line 33 of Fig. 1;

Fig. 4 is an enlarged rear end view of the door;

Fig. 5 is a fragmentary longitudinal sectional view of the door taken substantially along line 5-- 5 of Fig. .4;

Fig. .6 is a transverse sectional view of the door taken Substantially along line 6-6 of Fig. l;

Fig. 7 is a perspective sectional view of the rear lower corner of one of the sash members;

Fig. 8 is a perspective sectional view of the front lower corner of one of the sash members;

Fig. 9 is an enlarged perspective view of the front law oi cornero'f the door, as shown in Fig. .1;

Fig. 10 is a perspective view of another form of glass door constructed in accordance with this invention;

Fig. 11 is a fragmentary perspective view of the glass panel removed from the sash members of the door of Fig. 10;

panel;

Fig. 16 is a fragmentary perspective view of the adapter plate preparatory to assembly with the panel and sash members;

Fig. 17 is a fragmentary transverse sectional view of a glass door constructed in accordance with this invention and a plurality of adapter plates in operative relation therewith; v

Fig. 18 is a fragmentary longitudinal sectional view of the door and adapter plates taken substantially along line 18 18 of Fig. 17; and

4 Fig. 19 is a sectional view of the door and adapter plates taken substantially along line 19-19 of Fig. l8. Referring now to the drawings, and specifically to Fig. 1, there is shown a door constructed in accordance with this invention and designated in its entirety by the nuineral 20. .As assembled, the door comprises a rectangular panel of tempered glass 21-, of sufiicient thickness and strength to withstand the sustained usage to which-ahinged door, of the push type is subjected, and sash members -22 at the top and bottom edges of said panel. It is to be under stood, of course, that door 20 is adapted to swing at its rear end (left most in Fig. 1) on a suitable hinge mechanism within an accommodating frame (not shown) and that other objects of hardware, such as handleg-push bars, locks, etc. may be provided on the exterior thereof. Howany portion of this invention, other than the fact that the door itself is constructed so as to be adaptable for use with such objects, and for this reason they have not been shown in the drawings.

In this respect, it will be noted during the course of this description that door 20 is adaptable for any number and variety of objects of hardware and for that reason its uses are relatively unlimited. As well, it is to be understood that the application of the novel features 'of this invention, particularly those dealing with the secure ment of sash members 22 to panel 21, is not to be confined to glass door constructions. For example, it is contemplated that the novel features of this invention may be employed in the construction of windows, display counters, and the like. It is further contemplated that if purposes be best served thereby the sash members may be located at only one edge of the panel or, on the other hand, at all four edges thereof. Even further, it would be within the realm of this invention to secure sash members of the type disclosed to panels of materials other than glass in which case the novel arrangement disclosed herein of securing said sash members to the edges of the panel would be equally effective.

As mentioned previously, in a glass door construction, panel 21 is preferably of plate glass which has been tempered with a special heat treatment which gives it a strength of three to seven times that of ordinary plate glass. However, the edges of the panel are made quite brittle by the tempering process and it is therefore advisable to locate sash members 22 at critical areas along said door edges which are subject to the most kicking, scatching and scuffing.

As best shown in Figs. 2 and 5, each corner of rectangular panel 21 is notched at 23, for a purpose to be hereinafter explained. Each notch has a substantially semi-circular portion, the center of which is directed toward a corner of the panel, and a short fiat cut-off portion at the intersection of said first-mentioned portion with the top or bottom edge of the panel. The semicircular portion of the notch 23 may be formed with a conventional hollow glass drill after which the fiat portion may be sawed or broken off in any suitable manner.

The bodies 24 of sash members 22 are substantially H-shaped members of extruded or cast aluminum, bronze, or other suitable metal, comprising opposed longitudinal panel-receiving channels 25 and hardware-receiving chan' nels 26, which are divided their entire lengths by a web 27. The sash bodies 24 are tapered outwardly to accommodate channel 26 which is wider than channel 25.

In the case of conventional /2 to inch panels, this tapering effect not only permits channel 26 to be large enough to be adaptable to receive most any sized hardware but as well presents a uniform and eye-pleasing exterior finish with a minimum of metal.

The ends of panel-receiving channels 25 of sash members 22 are closed by means of end plates 28 which are riveted or otherwise suitably secured to the legs of said channels as at 29 so as to be flush at their outer faces with the ends of sash bodies 24. At the rear or pivoting end of the door 20, each of the hardware-receiving channels 26 are closed by larger end plates 30 which are similarly secured to the legs of channels 26 as at 31 and fiush with the ends of sash bodies 24. However, at the front or swinging and locking end of the door (rightmost :in'Fig. 1), each of channels 26 may be closed by re desired. Each of the adapters is rigidly secured to the web 27 of sash bodies 24 by a bolt or other suitable means. As well, end plates 30 may be suitably bored as at 35 to provide means for securing pivoting mechanism or the like within channel 26 for hingedly connecting door 20 to a suitable frame.

Each of the end plates 28 of panel-receiving channels 25 is slightly shorter than the depth of the channels such that said plates terminate just below the outer edge of the legs of said channels to form an offset portion 36 adjacent the ends of sash bodies 24. This offset portion extends the entire width of said end plates and is of a depth approximately equal to the mean thickness of a filler material to be applied to the space between glass panel 21 and channel 25 of sash members 22 in a manner and for a purpose to be hereinafter described more fully. From offset 36, the inner face of end plate 28 is curved. inwardly toward web 27 of the sash member and is serrated as at 37 so as to adequately lock into place a filler material inserted between the end plate 28 and the corner notch 23 of the glass panel as it projects toward said web in substantially parallel relation with the outer face of said end plate. Thus, there are disposed at each end of channel 25, serrated inner faces on end plates 28 which faces are adapted to substantially oppose and correspond with the notches 23 in panel 21 and extend inwardly into the notches 23 a limited distance when said panel is assembled with and received in channel 25.

That is to say, that portion of the top and bottom edges of glass panel 21 between notches 23 is slightly shorter than the space longitudinally between the inner serrated faces of end plates 28. As well, the depth of notch 23 and therefore the depth of the aforementioned top and bottom edge portions of panel 21 is substantially equal to the height of end plate 28. Thus, as best shown in Fig. 5, this same portion as the top and bottom edges of the panel may be received within channel 25 in such a manner that the edge of notch 23 adjacent the side edge of panel 21 is in substantially horizontal alignment with the top edges of the legs of channel 25. In this manner, as the space between the panel and the channel is filled with a material 38 which will harden and set in said space and thus lock the aforementioned portions of the panel within channels 25, said panel may be so positioned in said channel that substantially all of the filler material will be concealed by the legs of channel 25 from view from both sides of the door.

Of course, in applying a molten filler material 381to the space between the panel 21 and channel 25, it is desirable to entirely fill said space with the filler before it has a chance to harden. The primary purpose of the material is to fill the space between serrations 37 on end plates 28 at the ends of channel 25 and notch 23 in panel 21. In filling the gaps between the individual serrations the material 38 will, upon hardening, be locked in place.

Similarly, in filling the semi-circular portion of notch 23,

the material will lock the top or bottom edges of panel 21 within channel 25, as shown in Figs. 5 and 6. In other words, the filler material will become anchored in the serrated face of end plates 28 and the cut-off portion of notch 23 will in turn become anchored in filler material 38. It is a further purpose of the material to fill the spaces longitudinally of the three sides of the portion of the top and bottom edges of panel 21 received in the channels 25. In this manner, not only is the appearance of the door enhanced but as well water and/ or debris are prevented from filling said space and endangering the lock or joint between the panel and the channels.

For practical purposes, the filler material 38 should be of a substance which will become molten so as to be readily pourable into the spaces between the channels and the tempered glass panel at a temperature which will not injure the panel. Also, it should be of a substance which will set up or harden quickly in order that assembly of thepanel with the sash members 22 is not impeded,

but which at the same time has a melting point substantially higher than the temperatures to which doors of this type are normally subjected. In actual practice it has been foundsatisfactory to use as afiller material an alloy sold under the trade name Cerrobase and having proportionate parts of 42.5% lead, 55% bismuth, and 2.5% tin and a melting point of approximately 255 F. When applied to the spaces at a temperature of about 485 F., the Cerrobase has been found to setup fast enough for assembly and production purposes but at the same time does not set up so fast that it wont fill the spaces along the entire length of the top and bottom edge portions of panel 21 which are received in channels 25. As well, it is good practice to coat said portions of panel 21 with an aluminum paint prior to applying the Cerrobase thereto as in this way the surfaces of said portions are rendered opaque and will conceal any bubbles, fissures, or the like which may occur in the Cerrobase. The ground surface of notch 23 is, of course, sufficiently translucent to conceal the filler material in the space between end plates 28 and said notch.

Any suitable method. of assembling the sash members onto the top and bottom edges of the panel may be employed. I. have found it very satisfactory, however, to suspend panel 21 vertically and at a height. best suited for working. conditions. by means of a hoist and suction cups which are placed on opposite faces of said panel. In this manner, first one and then the other edge of the door may be worked from both sides thereof simultaneously. That is, the panel edge may be elevated to a height such that a sash member can be placed in operative relation to said panel and retained in said relationas the filler materialis manually applied to the spaces between said panel and channels 25 in the sash members.

I have found that the sash members 22 can be retained in proper operative relationship with respect to panel 21, as filler material 38 is applied to the spaces therebetween, by means of shims or clips of brass or other easily pliable material. These shims are substantially U shaped with vertically corrugated leg portions which, as best shown in Fig. 9, match with those of the other shims such that when assembled as a group, the individual shims fit closely together to form a composite U shaped member 39 the legs of which are substantially compressible. Thus, a series of these groups of shims may be placed at appropriate intervals along the channel 25 of the sash member 22 to be assembled to an edge of panel 21 with their web portions adjacent web 27 of the sash body 24 and with their leg portions held tightly between the legs of the channel. In this manner, a sulficient number of shims may be used in each group so that as the channel of said sash member is placed over the edge portion of the panel to be received therein, said edge will be forced between the compressible legs of'each group of shims and be resiliently held thereby. It will be understood, of course, that in this manner, panels of varying thicknesses may be used with the same sash members. As Well, the spaced groups of shims will aid in properly spacing channel 25 from the edge portion of panel 21 received therein. That is, it has been found that when inserted between the legs of the shim groups so as to rest upon the web portions thereof (Fig. 5), said edge portion of the panel is at least approximately properly spaced from the web 27 of sash body 24 and the end faces of the sash members need only be aligned with the side edges of panel 21 preparatory to applying filler material 38.

Thus, as panel 21 is suspended at the proper working elevation and as channel 25' of sash member 22 is held inproper spacedrelation to an edge portion of said panel, the filler material is applied to the space between said channel and the sides, ends and bottom of said panel edge portion. Two workmen may be employed for this operation whereby the filler material is applied simultaneously at opposite sides of the panel 21 and poured into the space between channel 25 and panel as eachlworkman moves from one end thereof to the other. In order to get as even a distribution as possible, it is advisable for the workmen to move in opposite directions such that at each end of the panel, a partially hardened portion of the filler will be ofl'set by a portion which is immediately applied at the optimum temperature of 485 F. Inasmuch as the Cerrobase is quick to harden, it is also advisable to immediately peel off the residue which spills over the outside surface of sash member 22.

In actual practice, this method of applying the filler material has been. found quite satisfactory. Especially has this been found to be true in. conjunction with a sash member in which. olfset portions 36 are formed in plates 28 at both: ends of channel 25. As has been previously mentioned, it is by virtue of the olfset portions that the filler material 38 may be substantially concealed from view, thus adding to the eye appeal of the finished door. It was found that without the use of this offset portion each corner of door 20' was rendered unsightly due to the hardened filler material projecting above the upper edge ofthe legs of the sash member 22 at a point where notch 23 was not confined at each side thereof by said legs, and that pouring said material into the unconlined portion of said notch involved further problems. When the edges of panel 21 were not true the unsightly appearance of the exposed filler material was of course aggravated.

in Figs. 10 to 14, inclusive, there is illustrated another form of glass door constructed in accordance with. this invention and composed of corresponding members of similar material to those of the door 20 above-described, which members may likewise be assembled in a similar manner. This door is shown in Fig. 10 and is designated in its entirety by the numeral 40. As assembled, the door comprises a, substantially rectangular panel 41 of tempered plate glass and metal sash members 42 at each rear corner and at the front lower corner of said panel. ila-rly to the door 29 of Figs. 1 to 9, door 40 may be adapted to swing on a suitable hinge mechanism at the rear (leftmost) end thereof and be locked at its front (rightmost) end.

As best shown in Fig. 11, both rear and the front lower edge corners of the panel 41 to be received by a sash member 42 are notched as at 43. Each of these notches is substantially rectangular and includes a substantially semicircular portion at its corner adjacent the side edges of the panel, a substantially circular portion at its inner corner, and another substantially semi-circular portion at its corner adjacent the top or bottom edges of the panel. Of course, the circular portions of the notches may be formed with conventional glass drills and the flat portions connecting. said circular portions may be sawed in any suitable manner. As can be, best seen in Figs. 12 and 13, the portion of each of the notches 43 at its corner adjacent the side edge of panel 41 is substantially similar to notch 23 of the previously described form of door 20.

The bodies 44 of sash members 42 are H shaped in cross section substantially their entire lengths to form opposed longitudinal panel-receiving channels 45 and hardware-receiving. channels 46 which are separated their entire lengths by a web 47. As shown in Figs. 12 and 13, the web is turned outwardly upon itself so that channel 45 is substantially L shaped and channel 46 is closed at its inner end by saidweb. As well, sash bodie 44 are tapered outwardly in a manner and for the purpose previously discussed withv respect to door 20.

It is contemplated that with this type of door, the sash bodies may be of cast bronze or aluminum in which case the outer side ends of panel-receiving channels 45 may be closed by a cast flange portion 48. The opposite ends of said channels may be closed by another flange portion 49 projecting horizontally from the short leg of web 47. The outerends of hardware-receiving channels 46 may be closed by an integrally cast member 50 '(Fig. l2) or by a similarly shaped and p'ositionedrem'ovable end plate? Sim- .7 such as 51 (Fig. 13). As in the case of riveted end plates 30 for door 20, members 50 may be suitably bored as at 52 to provide means for attaching pivoting mechanism or the like in channel 46 of sash members 42 at the rear end of door 40. However, in the case of sash members to be disposed at the front or locking end of the door, it is good practice to provide a removable plate 51 at the outer end of hardware-receiving channel 46. In this manner, as in the case of removable plate 32 for door 20, a locking mechanism or the like may be inserted and/or removed while door 40 is mounted in a suitable frame. End plate 51 may be made removable from the sash member 42 at the front end of the door by means of an adapter plate 53, similarly to the removable end plates 32 and adapter 34 for door 20.

For purposes which have been hereinbefore described in full, and similarly to end plates 28 of door 20, flange portions 48 are slightly shorter than the depth of panel-- receiving channel 45 to define offset portions 54. Also, the inner faces of flange portions 48 are serrated as at 55. At the oppositely disposed inner end of channel 45 a stud 56 is secured to web 47 and is serrated on both vertical faces as at 57. Thus, vertical serrated surfaces are provided at each end of the horizontal portion of panel-receiving channel 45 and said surfaces are adapted to substantially oppose and correspond with the outer side and the inner corner portions of notch 43 in interfitting but spaced relation when the top and bottom edges of panel 41 are properly assembled with and received within channels 45, as clearly illustrated in Figs. 12 and 13.

Similarly then to the door 20, door 40 is formed by assembling sash members 42 at each of three corner edge portions of panel 41 shown, such that channel 45 is in proper spaced relation with respect to said portions of panel 41 to be received therein. Also, it can be seen that as a filler material 38 is applied thereto, said space will become filled and, as the filler hardens, sash members 42 will be rigidly locked in place at the three corners of panel 41 in such a manner that said filler material is substantially concealed from view.

The filler material used in locking the sash members to the glass panels comprises a substantial portion of the cost of the entire door construction. Particularly is this true in the case of Cerrobase which has proven to be of such value as a filler material. This invention then contemplates using adapter plates 58 (Figs. 15 to 19) in the place of the shims 39 for securely holding the sash members to the edge portions of the glass panels in spaced relation to one another as the molten filler material 38 is applied to the spaces. forming this function, in a manner similar to the shims as aforenoted, adapted plates 58 further serve to materially reduce the amount of filler material used and thus materially lessen the cost of producing the doors themselves.

That is, the adapter plates 58 are constructed in such a manner that when a number of them are assembled in interfitting relation and placed in operative relation with respect to the glass panel and the sash members of the door, similarly to shims 39, they also serve to seal off from the outside a large portion of the space longitudinally of the channel of the sash members between said panel and sash members. It has been previously mentioned that by filling the longitudinal spaces, the filler material prevented water and/or debris from accumulating therein. Thus, in etfectivcly sealing off a large portion of these spaces from the outside, the adapter plate preclude the necessity of filling the same.

Specifically, and with reference to Figs. 15 and 16, adapter plates 58 are made of thin sheets of brass or other easily pliable material, as were the shims previously mentioned, which may be suitably corrugated and folded longitudinally to form channel-like members as shown in Fig. 16. The end sections 59 of each of the plates are similar to shims 39 and comprise vertically cor- In addition to perrugated side walls or legs connected by a flat web where the sheets are folded. Connecting only the top portions of the side walls of each end section and extending longitudinally therebetween are horizontally corrugated side sections 60.

Preparatory to assembly of the glass panel to the sash members of the door, a number of the adapter plates are assembled as a group in interfitting relation to form a composite channel-like member of a thickness sufficient to suitably space the panel and sash members from one another and at the same time properly assemble and securely lock them together, as did shims 39 with respect to the doors shown in Figs. 1 to 14. As can be seen from Fig. 17, the adapter plates are of a length sufficient to extend over a major portion of the length of the edge of the glass panel. In this respect, of course, the length of the plates 58 will depend on the Width of the glass panel of the door. In actual practice, with panels 36" in width it has been found satisfactory to extend the plates to within about five inches of each end thereof. In this manner, the filler material fills the entire space between the notch of the panel and the opposed serrations of the sash members as well as a portion of the longitudinal spaces between the panel and sash members and thus provides a sufiicient lock between the same.

Adapter plates such as these have been found to be of great advantage with both forms of glass doors shown in Figs. 1 to 14 as well as with other doors of the type described. However, as will be understood, the greatest saving of filler material has been accomplished with the type of door 20 wherein the sash members 22 extend the entire width of glass panel 21. Thus, for purposes of illustration, adapter plates 58 are used in connection with door 20 although it is to be understood that their use is not to be so restricted.

it has been previously explained, with respect to shims 39, that the glass panel and the sash members are securely locked in proper spaced relation as filler material 38 is applied to the spaces therebetween in channel 25. it will be readily understood that end sections 59 of the adapter plates will function similarly to said shims, when the adapter plates are properly assembled as shown in Figs. 17 to 19, in locking the edge portions of panel 21 and sash members 22 together. As well, it can be seen that the vertical corrugations of the end sections 59 of the plates form a wall between the longitudinal spaces between said end sections at both sides of the panel and the longitudinal spaces outwardly of said end sections. Also, side sections 69 form a top wall for the aforementioned longitudinal spaces between the end sections. Thus, there is a void space 61 enclosed or sealed off from the outside bythe adapter plates at both sides of the panel 21.

It can now be seen that as the filler material 38 is applied to the space in channel 25 between the edge portions of panel 21 and sash members 22, adapter plates 58 will serve to seal off a substantial portion of said space and thus provide a large saving in the overall cost of the unit. Inasmuch as end sections 59 of the plates are slightly shorter than the depth of channel 25, as were shims 39, there will be a shallow rim portion 62 of filler material which will extend over the top edges of said end sections and side sections 60. In this manner, the appearance of the door is in no way harmed.

The sealing oft of space 61 by means of adapter plates 58 has not only enabled a substantial saving in filler material but as Well the filler material 38 surrounding the end and side sections as at 62 has been very effective in preventing the accumulation of moisture within said space. However, as an added precaution in case of accumulation of water to any appreciable extent in the space, drain holes 63 may be drilled through web 27 of the bottom sash member 22 at a number of points between end sections 59 of adapter plates 58.

It is to be understoodthat the forms of the invention disclosed herein are to be taken as the preferred embodiments thereof, and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the following claims.

I claim:

1. An adapter plate for the assembling of sash members with panel edge portions comprising, a channellike member of easily pliable material having vertically corrugated, U shaped end sections spaced from one another and connected to one another by horizontally corrugated side sections.

2. An adapter plate for the assembling of sash members with panel edge portions comprising, a channel-like adapter member of easily pliable material, comprising U shaped end sections having vertically corrugated leg portions and horizontally corrugated side sections extending between only the upper ends of the leg portions to define an open space between the lower ends of the leg portions and beneath the side sections.

3. A door construction comprising, a glass panel having a sash member at an edge portion thereof, said sash member including a longitudinally extending web and legs upstanding therefrom which define a channel for receiving said panel edge portion, a recess in said panel edge portion at a corner of said panel, a plate member adjacent but spaced from said recess and extending laterally across said channel between and terminating slightly below the upper edge of said legs, said plate member defining an offset portion along the upper edge thereof between said legs, and a filler material in the space between said plate member and offset portion and said recess.

4. A door construction of the character defined in claim 3, in which said offset portion terminates below the upper edge of said channel legs a distance at least equal to the space between said offset portion and said recess.

5. A sash member for an edge portion of a glass panel or the like comprising, a longitudinally extending web having upstanding legs to define a channel therebetween for receiving said panel edge portion, and a plate member extending laterally between said legs at each end of said channel and terminating slightly below the upper edges of said legs to form an offset therebetween.

6. A sash member of the character defined in claim 5, in which at least one face of each of said plate members is serrated.

7. A sash member for an edge portion of a glass panel or the like comprising, a longitudinally extending web having upstanding legs to define a channel therebetween for receiving said panel edge portion, a plate member extending laterally between said legs at each end of said channel said plate member having a portion thereof serrated and extending longitudinally inwardly into said channel, and serrations formed on at least one face of each of said plate members.

8. A door construction comprising, a glass panel having a sash member at the edge portion thereof, said sash member including a longitudinally extending web and legs upstanding therefrom which form a channel for receiving said panel edge portion in spaced relation thereto, adapter means disposed within the space between said channel and said panel edge portion and spaced inwardly of the opposite ends thereof, and a filler material in the remaining space at opposite ends of said adapter means.

9. A door construction of the character defined in claim 8, in which said adapter means comprises a U-shaped member of pliable material, which member is resiliently compressed between the channel and the panel edge portion for actively gripping said panel edge portion in spaced relation to said channel.

10. A door construction of the character defined in claim 9, in which said adapter means extends along a substantial length of said panel edge portion to seal 011 11. A door construction of the character defined inv claim 9, in which said U-shaped member includes a pair of spaced legs connected at their upper ends by side sections extending longitudinally of the channel, which side sections are also resiliently compressed between said channel and said panel edge portion.

12. A door construction comprising, a glass panel and a sash member at an edge portion thereof, said sash comprising a web and legs upstanding therefrom to define a channel for receiving said panel edge portion in spaced relation to said legs, and a filler material in only a minor portion of the space between said panel edge portion and each of said legs.

13. A door construction comprising a glass panel having spaced recesses along an edge thereof and each of said recesses including a reduced throat portion adjacent the panel edge portion and an enlarged concave notch extending inwardly therefrom, a sash member having a longitudinally extending channel including a web portion and legs upstanding therefrom which receive said panel edge portion in spaced relation thereto, plate members extending laterally across said channel in adjacent spaced relationship with the recesses in said panel edge portion and each of said plate members having a portion thereof of a distinctly different contour from an adjacent recess and extending inwardly into said recess, and a filler material in the spaces between said channel and plate members and said panel edge portion.

14. A door construction comprising a glass panel having spaced recesses along an edge thereof and each of said recesses including a reduced throat portion adjacent the panel edge portion and an enlarged concave notch extending inwardly therefrom, a sash member having a longitudinally extending channel including a web portion and legs upstanding therefrom which receivesaid panel edge portion in spaced relation thereto, plate members extending laterally across said channel in adjacent spaced relationship with the recesses in said panel edge portion and each of said plate members having a portion thereof of a distinctly different contour from an adjacent recess provided with serrations and extending inwardly into said recess, and a filler material in the spaces between said channel and plate members and said panel edge portion.

15. A door construction comprising a glass panel having spaced recesses along an edge thereof and each of said recesses including a reduced throat portion adjacent the panel edge. portion and an enlarged concave notch extending inwardly therefrom, a sash member having a longitudinally extending channel including a web portion and legs upstanding therefrom which receive said panel edge portion in spaced relation thereto, plate. members extending laterally across said channel in adjacent spaced relationship with the recesses in said panel edge portion, said plate members terminating slightly below the upper edge of said legs to close all but an offset portion between said legs and each of said plate members having a portion thereof of a distinctly different contour from an adjacent recess provided with serrations and extending inwardly into said recess, and a filler material in the spaces between said channel and plate members and said panel edge portion.

References Cited in the file of this patent UNITED STATES PATENTS 810,564 Pomeroy Jan. 23, 1906 1,769,564 Wynkoop July 1, 1930 2,263,772 Gold et al. Nov. 25, 1941 2,284,409 Erath .May 26, l942 2,316,528 Miles Apr. 13, 1943 2,348,319 Bailey May 9, 1944 2,408,483 Rodman Oct. 1, 1946 

